Vacuum cleaner



E. RAGONOT July 12,1927; 1,635,344

VACUUM CLEANER Filed March '7. 1925 2 Sheets-Sheet 1 WWW *0;

, ATTORNEY? E. RAGONOT July 12, 1927. 1,635,344

VACUUM CLEANER Fiied March 7. 1925 ZSheets-Sheet z' I .1 VEA/ r0): z

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thereof, for example,-

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Patented July 12', 1927.

nnmonn moouo'r, or MALAKOFF,'FBANCE.

VACUUM CLEANER.

application filed March 7,

This invention has for its object means by which the distance from theground of the suction inlet or, nozzle of an electrically driven vacuumcleaner mounted upon rollers 5 or Wheels can be rapidly and easilyadjusted.

The provision of such'an adjustmentis' necessary for obtaining highefficiency,- as the height of the suction inlet above the ground-shouldvary according to the nature for parquet flooring or a carpet, and if 'acarpet, for a thick nap car et or short nap carpet.

- uch an adjustment has often been made by raising the rear roller ofthe apparatus. is slow and does not allow sufiicient adjustment and ishardly applicable when the apparatus is provided with a rear selfsteerable wheel, which is moved about a vertical axis.

According to this invention the adjustment is effected on the frontwheels by mounting these in a vertically adjustable pivoted frame. Theframe is caused by a spring to bear against a cam which can be movedrelatively to rat-us;

The invention is illustrated in the accom- .pan ing drawings, of whichFigure 1 is :a

sectional elevation of the apparatus, Figure 2 is a partial section onthe line A B C of Figure 1, and Figure 3 shows details of the cam. Thebody portion of the apparatus ineludes the casing 1 and the suctioninlet 2, mounted upon the rear self-steering wheel 3 and the frontwheels 4, 4, mounted upon I an axle 5 carried by a frame 6 movable aboutpivots 7 ,7 positioned adjacent the rear of the suction mlet. e

The cylindrical portion 8 of the apparatus, forming a connection betweenthe suction inlet 2 and the casing 1, is embraced by a cam ble sheetmetal piece distorted by being bent slightly on the c lindrical portion8, so that it is by its elasticity firmly maintained in position in thecylindrical portion and will not become displaced when the apparatusreceives 0 a shock. A- floatingcam 9 of the type-herein disclosed doesnot require a'n external locking mechanism for holding tli position, theresiliency thereof and the manner in which it is mounted serving toprevent displacement thereof.

1925, Serial No. 13,685, and in France mar in s,

.which it can abutment ll'or 12 coming aga nst a the body of the appavinlet portion,

9 cut from a relatively thin and flexiout of shape before being mountedP e same in 1924. v 9 Cam 9 is provided with a handle 10 by e turned inits housing 8 and so brought into any desired position between the twoextreme positions determined byf 1 t2; X

pin 13. 15 is an angle piece fixed to thefree end of frame 6 and whichis firmly pressed against the cam 9 by blade springs 14, 14.

In order instantaneously to adjust the height of the suction inlet abovethe ground it is only necessary to make a suitable movement of thehandle 10 and owing to the elasticity of the cam 9 any regulationmade isfrictionally maintained, no stop or locking device being required.

Handle 10 can be manipulated conveniently by one hand'to adjust theheight of the suction inlet.

What I claim is 1. In an electrically operated vacuum cleaner, thecombination witha wheel supported bod casing and a suction-inlet por-'tion, of a rame pivoted to said suction inlet portion for verticalmovement relatively thereto and carrying wheels, means comprising acylindrical member connecting said body casing and suction inlet portionto gether and a cam embracing saidcylindrical member and acting on saidframe for controlling the position thereof.

2. In an electrically operated vacuum cleaner, the combination with abody portion mounted on wheels-and including a suction 'of a framepivoted to said suction inlet portion for vertical movement relativelythereto and carrying a supporting wheel, a circular. guide formed onsaid body portion. a cam slidably carriedbysaid e and acting on' theframe to adjust the atter vertically and cooperating stop elementscarried by said body portion and said cam for limiting the movement ofthe cam.

3. The-combination in erated vacuum cleaner provided witha be y rtionincluding a suction passage extend-' ing therethrough, of a wheelcarrying .frame pivotally secured to said body portion, a cam memberrotatably mounted upon said body portion and encircling said suctionpassage, said cam member having a cam surface engagingsaid wheelcarrying frame for raismg or lowering the latter, and means for rotatingsaidcam.

4.-In. an electrically cleaner, the combination with operated vacuum abody poran electrically o i tion mounted on Wheels, of a frame pivotallyconnected to said body portion for vertical movement relatively theretoand carrying a supporting Wheel, said body portion including asupporting groove, a cam mounted within said groove and frictionallyengaging the same and formed with a cam surface engaging said frame forcontrolling the vertical position of the latter, the friction betweensaid cam and groove assisting in 1 preventing displacement of said cam.

In testimony whereof I affix my signat re.

EDMOND RAGONOT.

